Security Incidents mailing list archives
Re: DHCP or Probe?
From: "Clint Bodungen" <clint () secureconsulting com>
Date: Thu, 11 Mar 2004 10:50:12 -0600
I'm getting the following traffic about every second to my cable modem (My IP, not a broadcast address. UDP packets looking for port 67... but from a "10 dot" address. Is this the typical chatty Roadrunner DHCP probes or is it a worm probe? The reason I find this odd is because the source address here is from a "10 dot" class A. I'm not on PTP... I have a public address... so this is either from a spoofed address, a misconfiguration by one of my cable modem neighbors, or worse... a misconfiguration by RR. Wed, 2004-03-10 14:43:33 - Device Receive UDP Packet - Source:10.50.192.1,67,WAN - [Drop] Destination: [My IP Address] Wed, 2004-03-10 14:43:33 - Device Receive UDP Packet - Source:10.50.192.1,67,WAN - [Drop] Destination: [My IP Address] Wed, 2004-03-10 14:43:35 - Device Receive UDP Packet - Source:10.50.192.1,67,WAN - [Drop] Destination: [My IP Address] Wed, 2004-03-10 14:43:35 - Device Receive UDP Packet - Source:10.50.192.1,67,WAN - [Drop] Destination: [My IP Address] --------------------------------------------------------------------------- Free 30-day trial: firewall with virus/spam protection, URL filtering, VPN, wireless security Protect your network against hackers, viruses, spam and other risks with Astaro Security Linux, the comprehensive security solution that combines six applications in one software solution for ease of use and lower total cost of ownership. Download your free trial at http://www.securityfocus.com/sponsor/Astaro_incidents_040301 ----------------------------------------------------------------------------
Current thread:
- Re: DHCP or Probe? Clint Bodungen (Mar 11)
- Re: DHCP or Probe? Eric Peek (Mar 11)
- Re: DHCP or Probe? Daniel Hanson (Mar 12)
- Re: DHCP or Probe? Clint Bodungen (Mar 12)
- Re: DHCP or Probe? Daniel Hanson (Mar 12)
- Re: DHCP or Probe? John Sage (Mar 12)
- Re: DHCP or Probe? Clint Bodungen (Mar 12)
- Re: DHCP or Probe? Eric Peek (Mar 11)